This paper presents data collected during the RK-DIESEL simulation for a four-stroke diesel engine, 4 cylinders with a total displacement 1.9 Lt delivering a maximum brake power 77 Kw at 4000 rev/min and maximum torque 250 Nm at 1900 rev/min. This type of engine is an optimal and very common engine in everyday use for its low consumption and easy maintenance. An analysis of vehicle typology that are mostly used in Tirana is taken in account together with the distribution of population, considering these as the main contributors in emissions. Transport is one of the main sectors that contributes to the pollution and a backbone of the economic development in every country. Albania transport sector was divided by road, railway, maritime transport, and aviation up to 2000. After 2000 the road transport increased rapidly, becoming the main contributor in air pollution and GHG emissions coming from fossil fuel burning. The number of vehicles is increasing continuously causing a higher concentration of vehicles compare to the existing infrastructure that is almost the same as it was before 2000. On the other hand, the population distribution is another factor that impacts the increase of pollution The population of Tirana is in increasing and uncontrolled trend putting pressure constantly in critical infrastructure and services. Almost 1/3 of all population of Albania are habitants of Tirana, and according to the statistics Tirana is the most polluted city in Albania, including the fact that most economic activities are concentrated in Tirana region. The use of Battery Electric Vehicles (BEV), Plug-in Hybrid Electric Vehicles (PHEV) and Fuel Cell Electric Vehicles (FCEV) would be the best way to reduce the air pollution and GHG emissions over the years and to have a development of sustainable transport. But what is the economic and social cost of changing from combustion to electric vehicles? Are we ready in terms of infrastructure to use electric vehicles? Until all the requirements will be met, it is needed a smooth transition to phase out the combustion and transit to new technologies to decrease the GHG emissions and air pollution.